2017年商务英语BEC高级口语辅导（2）

　　别开生面having sth. New

　　别有用心have ulterior motives

　　彬彬有礼refined and courteous urbane

　　兵不厌诈in war nothing is too deceitful

　　博古通今erudite and informed

　　不败之地incincible position

　　不耻下问feel not ashamed to learn from one's subordinates

　　不可救药be past praying for beyond redemption

　　不劳而获reap where one has not sown

　　不屈不挠fortitude indefatigability perseverance persevere tenacity

　　不速之客crasher uninvited guest

　　不同凡响outstanding

　　不言而喻speak for itself tell its own story tell its own tale went without saying

　　不遗余力spare no effort spare no pains

　　不以为然not approve object to

　　不义之财filthy lucre filthy pelf the mammon of unrighteousness

　　不亦乐乎extremely

　　不远千里go to the trouble of traveling a long distance

　　不约而同happen to coincide